High Availability and Scalibility: ELB & ASG

Load Balancer

• servers that forward traffic to multiple servers downstream
  • Application Load Balancer
    • layer 7 (HTTP)
  • Network Load Balancer
    • layer 4 (TCP & UDP)
    • your application can only be accessed within 1, 2, or 3 different IPs의 대한 정답
    • each AZ that you enable for your NLB, ge
  • Gateway Load Balancer
    • layer 3 (Network layer) - IP packets
    • Transparent Network Gateway - single entry/exit for all trafic
    • Load Balancer - distributes traffic to your virtual appliances
    • GENEVE protocol on port 6081